var xmlHttp;
var str;
var dropid;
function hidedropdown(dropid){
//document.write(str);
//document.getElementById(str).style.display=" ";
document.getElementById(dropid).style.display="none";

}

function showdropdown(){
//alert("Reading JS");
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request");
 return;
 }
var url="http://www.idomysite.com/ajax/dropmenu_ajax.php";
//alert(url);
//url=url+"?id="+str;
//document.write(url);
//url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("dropmenu").innerHTML=xmlHttp.responseText;
 } 
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  xmlHttp= new XMLHTTP;
  }
 }
return xmlHttp;
}